وَنَمَارِقُ مَصْفُوفَةٌۭ
Sentence structure
وَنَمَارِقُ is another coordinated nominative noun, and مَصْفُوفَةٌ is its nominative adjective.
Ayah summary
Cushions will be arranged neatly in rows.
وَنَمَارِقُ — And cushions
Grammar: وَ coordinates; نَمَارِقُ is an indefinite broken-plural nominative noun.
مَصْفُوفَةٌۭ — lined up
Grammar: An indefinite feminine-singular nominative passive-participle adjective of نَمَارِقُ.